This unit uses DSP techniques to generate pilot and multiplexing control voltages. Pilot is generated using a 5 bit D/A converter. It has many advantages over SE-2; low pass audio filter, improved pilot generation due to DSP, stereo/mono switch, increased channel separation, simplified (no) tuning, less noise and all this in a board that is smaller and easier to assemble. Cost-efficient and simple. Includes on board control for optional maximizing of channel separation. Designed specifically as a companion for all MAX PRO series exciters, but its also compatible with any exciter that has an MPX input. All the connectors and switches are mounted on the board so connecting this unit requires no additional soldering apart for connecting the power supply line. This is a perfect KIT project even for beginners, easy to assemble and setup.